The movement from email to mobile deals has giving new life to Groupon Inc(NASDAQ:GRPN). The daily deals website reported better than estimated revenue growth. Revenue increased from $568 million to $609 million, which nearly a 7%increase. The street estimate was around $606 million in revenues. In pre-market trading, shares are up a whopping 27%. Deals through Smartphone apps have generated nearly $50 million downloads. The number of products sold through vouchers on site is up 45% in North America. Groupon has found a space to grown long-term with mobile apps. No more annoying promotional emails! (source: Socialmediaexaminer.com)